BufferUtils : ensureLargeEnough now set the limit to the buffer capacity if it exists to avoid creating a new buffer instead of reusing the previous one.

see http://jmonkeyengine.org/groups/development-discussion-jme3/forum/topic/bugbufferleak-in-ensurelargeenoughbitmaptextpage/?#post-188976

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@9730 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/core/com/jme3/util/BufferUtils.java

@@ -1105,6 +1105,9 @@ public final class BufferUtils {
      * the input buffer, not null
      */
     public static FloatBuffer ensureLargeEnough(FloatBuffer buffer, int required) {
+        if (buffer != null) {
+            buffer.limit(buffer.capacity());
+        }
         if (buffer == null || (buffer.remaining() < required)) {
             int position = (buffer != null ? buffer.position() : 0);
             FloatBuffer newVerts = createFloatBuffer(position + required);
@@ -1119,6 +1122,9 @@ public final class BufferUtils {
     }
 
     public static ShortBuffer ensureLargeEnough(ShortBuffer buffer, int required) {
+        if (buffer != null) {
+            buffer.limit(buffer.capacity());
+        }
         if (buffer == null || (buffer.remaining() < required)) {
             int position = (buffer != null ? buffer.position() : 0);
             ShortBuffer newVerts = createShortBuffer(position + required);
@@ -1133,6 +1139,9 @@ public final class BufferUtils {
     }
 
     public static ByteBuffer ensureLargeEnough(ByteBuffer buffer, int required) {
+        if (buffer != null) {
+            buffer.limit(buffer.capacity());
+        }
         if (buffer == null || (buffer.remaining() < required)) {
             int position = (buffer != null ? buffer.position() : 0);
             ByteBuffer newVerts = createByteBuffer(position + required);
@@ -1201,7 +1210,7 @@ public final class BufferUtils {
     private static Method viewedBufferMethod = null;
     private static Method freeMethod = null;
 
-    private static Method loadMethod(String className, String methodName){
+    private static Method loadMethod(String className, String methodName) {
         try {
             Method method = Class.forName(className).getMethod(methodName);
             method.setAccessible(true);
@@ -1227,7 +1236,7 @@ public final class BufferUtils {
             cleanerMethod = loadMethod("sun.nio.ch.DirectBuffer", "cleaner");
             cleanMethod = loadMethod("sun.misc.Cleaner", "clean");
             viewedBufferMethod = loadMethod("sun.nio.ch.DirectBuffer", "viewedBuffer");
-        if (viewedBufferMethod == null){
+            if (viewedBufferMethod == null) {
                 // They changed the name in Java 7 (???)
                 viewedBufferMethod = loadMethod("sun.nio.ch.DirectBuffer", "attachment");
             }